Air operated horn



March 14, 1933.' R T @BORNE 1,901,187

AIR OPERATED HORN Filed Jan 2l, `l932 gwuento@ ifratented Mar. 1.4, 1933 ROBERT T. OSBORNE, 0F WARRENQ OHIO AIR OPERATED HORN Applicatonrled January 21, 1932. Serial No. 587,979.

The invention relates to horns suitable for use on automobiles, for iog horns, and the like, and has for its object the provision of an improved construction oi' -voice'member by which voice members of diierenttone pitches may be substituted to change the tone of the reproduced sound, the invention relating particularly to the construction of the voice member and the means for securing it in the horn.

rlhe invention will be described in detail hereinafter and will be 'found illustrated in they accompanying drawing, in which Figure l is a side view in elevation of an improved horn suitable orusein connection with my invention, 1

Figure 2 is a top plan view, partly broken away and in section,

Figure 3 is an enlarged sectional view taken on a plane substantially shown by the line 3--3 of Figure 2, Yand Figure 4; is a view in perspective of the reed member.

In the drawing similar reference characters are used to designatecorresponding parts throughout the several views.

The horn includes a blower which is preferably of the type shown in the drawing and indicated at A having a. casing l in which is mounted a ian 2 on a shaft 3 driven by a suit able electric motor Li. The casing l has an outlet portion 5 to whichis removably Vsecured a tubular member 6 by means of set screws or the like 7, the other end of the tubular member 6 is provided with an amplifying member or bell C. The tubular member 6 is designed to receive a voice or reed member B having an inclined wallV 8 provided with openings therein, and 9 indicates reeds se-v cured to the inclined wall 8, said reeds being arranged opposite the openings in the wall so that they will be agitated by air fromthe blower fan 2 when in operation. The reed member B is secured in position in the tubular member 6 by means of a threaded bolt or 11 in the mouth of the outlet portion 5, said screw 10 that threadedly engages a cross bar Y partition `wallk 14 through which the bolt or screw 10 is secured, saidend walls and partition serving to hold the'member from vertical movement in the member 6.v 1 The device is adapted for use as a warning horn for motor vehicles, and the like, and the electric current to the motor @maybe controlled by a suitable switch conveniently located. lt will be understood that the voice or reed member B maybe quickly removed and replaced by removing the bolt 10 either" for repair or for changing the pitch or character of the tone of the horn. y

What is claimed is Y l. A voice or reed member Jfor air operated C5 horns, comprising a member. having 'an inclined wall provided with openings, reeds se-V cured to said wall and arranged opposite said openings, a vertical wall at each end of said member, and a partition intermediate of said walls, said walls and partition being spaced from one another to provide recesses for said reeds. f v

2. In an air operated horn, a tubular member, a cross bar therein having a threaded opening, an amplifying horn having a tubu' lar extension, means to secure said tubular eXtension to the tubular member, a reedmember in said tubular extension having an opening therein, and a threaded member engaging in the openings in the reed member and the cross bar to hold the reed member in operative position.

In testimony whereof l aiiix my signature.

ROBERT T. OSBORNE. 

